Huge flats of blooming lupines (Lupinus nootkatensis) surrounds the stand-alone mountain Hjörleifshöfi (Sauðafell) on the southern coast of Iceland.
I estimate these lupines to cover an unbroken area close to 20 km² across the Mýrdalsandur flats!
Lupines were introduced in Iceland for purposes of soil fertilization, and has since propagated into the wild all over the island.
As member of the pea family it is able to transform atmospheric nitrogen into organic nitrogen by using specialized bacteria living symbiotically in their roots.
It has settled in numerous regions in Iceland, where it can be found on dry, poor and often disturbed soil. It also grows commonly along roadsides.